<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <img src="./images/1.webp" alt="">
  <script>
    // 只要用到随机数，就写一个函数 n到m的随机数



    let random= function(n,m){
      return   Math.floor(Math.random()*(m-n+1)+n)
    }



    // 1. 获取图片对象
    let img = document.querySelector("img")

    // 2. 随机得到序号
    let random1=random(1,6)
    // 3. 更换路径
    img.src=`./images/${random1}.webp`


  </script>
</body>

</html>